Prestressed Concrete Design - PDF

5 Pages598 Words285 Views

Added on 2021-06-18

Prestressed Concrete Design - PDF

Added on 2021-06-18

Related Documents

Prestressed Concrete Design 1PRESTRESSED CONCRETE DESIGNby [Name]CourseProfessor’s NameInstitutionLocation of institutionDate

Prestressed Concrete Design 2Prestressed Concrete DesignQuestion 1a.Cross Section Area for Strength to Ultimate Limit State is given by;A = Fσ Where F = Axial load carried, and σ = compression stress.Given, F = NG + NQ = 1000 kN + 650 kN= 1650 kN and,σ = 1050 MPa (N/mm2)Adequate Cross Section Area = 16500001050N/mm2= 1571.4285 mm2The member should be minimum 1572 mm square.Proposed Cross-section = 450 x 450 = 202500 mm2202500 mm2 > 1572 mm square OK. Proposed Section Adequate.Question 1b.Factor of safety for no cracking under full service load;Full Service Load = NG + NQ= 1000kN + 650kN= 1650 kNMember under tension, therefore,Limits are: fv = f dRange = fv + f dFactor of Safety for no Cracking under full service load = fc+fifd+fc

End of preview

Want to access all the pages? Upload your documents or become a member.